Performing tomography to build orthorhombic models
US9983323B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 13, 2016 |
| Grant date | May 29, 2018 |
| Priority date | — |
| Expiry date | Sep 4, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2210/51
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Systems, methods, and computer-readable media for determining a velocity model. The method includes receiving a first velocity model having a first symmetry approximation of a media of a subterranean domain, receiving seismic data representing a subterranean formation, and determining, by operation of a processor, a second velocity model having a second symmetry approximation of the media, the second symmetry approximation being less symmetric than the first symmetry approximation. The second velocity model is determined based on an estimate of residual moveout as a function of azimuth and one or more differentials that relate one or more changes in residual moveout as a function of azimuth to one or more orthorhombic parameters. The method also including migrating the seismic data using the second velocity model.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.